Purpose: Hafnium Carbide is very suitable for rocket nozzle, for re-entry space rocket nose cone parts. Used in ceramic industry, etc. Of nature: nature: 12.7 g/cm3 density, melting point 3890 ℃, the highest melting point in a single compound is known. Volume resistivity Ω 1.95 x 10-4 cm (2900 ℃), thermal expansion coefficient of 6.73 x 10-6 / ℃. Usually use hafnium (HfO2) and carbon composite powder in the inert or reducing atmosphere, reaction temperature 1900 ~ 2300 ℃ can hafnium carbide with many compounds (such as ZrC, TaC) form a solid solution. High melting point and high elasticity, good electric conductivity, small thermal expansion and good impact resistance.
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From:pharmaceutical chemicals
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